878715512545 has 64 divisors (see below), whose sum is σ = 1204508196864. Its totient is φ = 610823151360.

The previous prime is 878715512537. The next prime is 878715512579. The reversal of 878715512545 is 545215517878.

878715512545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 878715512545 - 2³ = 878715512537 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 878715512545.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15408454 + ... + 15465376.

It is an arithmetic number, because the mean of its divisors is an integer number (18820440576).

Almost surely, 2^878715512545 is an apocalyptic number.

It is an amenable number.

878715512545 is a deficient number, since it is larger than the sum of its proper divisors (325792684319).

878715512545 is a wasteful number, since it uses less digits than its factorization.

878715512545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57182.

The product of its digits is 15680000, while the sum is 58.

The spelling of 878715512545 in words is "eight hundred seventy-eight billion, seven hundred fifteen million, five hundred twelve thousand, five hundred forty-five".